diff --git a/frontend/app/video/subtitles/page.tsx b/frontend/app/video/subtitles/page.tsx
index 147b926..3d2a306 100644
--- a/frontend/app/video/subtitles/page.tsx
+++ b/frontend/app/video/subtitles/page.tsx
@@ -131,8 +131,8 @@ export default function SubtitlesPage() {
       if (targetLanguage) {
         formData.append('target_language', targetLanguage);
       }
-      // Booleans must be sent as 'true' or 'false' strings for FastAPI Form
-      formData.append('burn_subtitles', burnSubtitles ? 'true' : 'false');
+      // Try sending booleans as 0/1 for FastAPI Form parsing
+      formData.append('burn_subtitles', burnSubtitles ? '1' : '0');
       formData.append('whisper_model', 'base');
       formData.append('output_format', 'srt');
       formData.append('font', font);
@@ -145,10 +145,10 @@ export default function SubtitlesPage() {
       formData.append('margin_v', '30');
       formData.append('margin_h', '20');
       formData.append('shadow', '0');
-      formData.append('bold', 'false');
-      formData.append('italic', 'false');
+      formData.append('bold', '0');
+      formData.append('italic', '0');
       formData.append('background_opacity', '0.0');
-      formData.append('word_timestamps', 'false');
+      formData.append('word_timestamps', '0');
 
       const response = await modulesApi.processSubtitles(formData);